Process of treating tubing and apparatus therefor



June 28, 1927. 1,634,066

A. M, BATES PROCESS OF TREATING TUBING AND APPARATUS THEREFOR Filed Jan. 19, 1925 Sheets-Sheet} Ade/mar fllBans.

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vJune 28, 1927. 1,634,066

A. M. BATES PROCESS OF TREATING TUBING AND APPARATUS THEREFOR Filed Jan. 19, 1925 2 Sheets-Sheet 2 Err-m a at -||I|II| I I llllnumll llll l ll ll |l l l lll mull I]! III U11 i i l l i l l am @W, WW fwmfwwl Patented J une 28, 1927.

UNITED STATES ATENT OFFICE.

ADELMER M. BATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES VALVE BAG 0011 PANY, OF CHICAGO, ILLINOIS, A CORPORATION WEST VIRGINIA.

PROCESS or TREATING TUBING AND APPARATUS THEREFOR.

Application filed January 19, 1925. Serial No. 3,437.

The invention relates to a process of treating tubing and apparatus therefor. 1,

More particularly, the invention relates totreatment at the rate most suitable for proper treatment.

In the drawings accompanying this specification and forming a part thereof- Figure 1 is a diagrammatic plan view of apparatus embodying the invention; Fig. 2 is a section approximately on the line 22 of Fig. 1; Figs. 3, 4 and 5 are detail views of the locking devices for the tube-carrying core; Fig. 6 is a view showing the core being placed about the shaft; and Fig. 7 is a 25 detail. view showing the manner in whichthe tube end is attached to the core.

The tuber diagrammatically indicated in Fig. 1 comprises stock supply means A from which sheets are drawn over guiding and adhesive applying mechanism B and through folding apparatus C by a feed device D and delivered to tube receiving, storing and delivering apparatus E, The present invention relates to .apparatus E, the other parts being indicated diagrammatically so that the relation of apparatus E thereto may be readily understood. Only apparatus E need be described in detail.

In the construction shown, a hollow. cylindrical shaft is fitted at one end with a'short plug 21 having a squared end 22, and at the other end with a comparatively long plug 23 having a squared end 24. The plug 23 may be composite, if desired, for

. ease in manufacturing. The squared ends are fitted into suitable sockets prepared therefor, and thehollow cylindrical portion,-

plugsand squared ends form in eflect one statlonary supporting and bearing shaft, with a reduced end, and it is obvious that this shaft might be one integral piece or might. be constructed in other .ways and 'bination.

Around the extended plug 23 there is a sleeve 25 to which a drive gear 26 is. attached by bolts 27. A feather 28 extends from'one side of sleeve 25 and is adapted to be received ina keyway 29 in a thimble or tube-core 30. The core 30 is formed of two semi-annularsections 31 and 32. Section 31 is provided with socket members 33 adapted to receive lugs 34 on section 32. Each lug 34 is provided with a hole 35, and ineach hole 35 there is a pin 36 with an enlarged head 37 adapted to enter a hole 38 in a socket member 33. Surrounding pin 36 within .hole35 there is a spring 39 which normally presses. the pin into hole 38 when holes 35-and 38 are brought into alignment. The pin is provided with a head 40 by means of which it may be withdrawn from hole 38 when desired.

A There are four sockets-33 on each section 31 and four lugs '34 on each section 32, so

that when a pair of sections 31 and 32 are brought together they are firmly held in proper relation. The pair of pins on either side of the core may be withdrawn, and the other two pins act asihinges upon which the up to .place the core upon the shaft or to remove it therefrom, as shown in Fig. 6.

When the two sections are brought together, there are notches 41 left between their outer surfaces. When a tube is to be wound on a core, the core is closed aboutthe stationary shaft and slipped along into place over sleeve 25 with feather 28 in key way 29. Then the end of a tube 42 is wound around the core and folded over a rod 43, the rod and tube folded thereabout being pressed into one of the notches 41. This holds the tube in place and compels it to rotate with the core, when gear 26 is driven by any suitable means.

Gear 26 is driven, preferably by a friction drive, at such a rate of speed that it rolls up the tube snugly about the core as the 1 tube is fed forward by the feeding device D. In the device shown the tube is formed so that the seam is onthe upper side, and the core is turned so that it receives the tube sections may be turned so as to open them on its upper side and the seam side of the i in tube is always outward. If the tube were formed with the seam on its under side, the core would be turned in the opposite direction, so as to keep the seam side of the tube outward, as that prevents the wrinkling of the seam which occurs when a tube is rolled up with its seam side inward.

lVhen a sufliciently large roll has been formed about the core, the tube is cut and the core with the roll thereon is slipped off of driving sleeve 26 onto the stationary hearing support 20, sleeve 26 and shaft 20 being of the same size so that the core slides readily onto or off of the sleeve.

Shaft 20 is made long enough to store a number of rolls of tubing, at least as many as necessary to give the adhesive the desired time to set and to furnish a storage supply for purposes indicated below.

The tube is indicated at 44 as being led off from a storage roll 45. The tube may be fed to a cutter, printer or other apparatus, not shown, for further operations on the tube, and the core turns readily on the stationary shaft as a bearing and delivers the. tube at the rate said apparatus can receive it. Ordinarily, the core will readily find and remain i'na position on the shaft in line with the apparatus to which it is fed, but removable collars may be applied to the shaft to hold the core in delivery position when desired.

The end of the tubing may be easily and quickly secured to the core, in the manner described, regardless of the exact length of said tube end, and necessarily rotates with the core as long as rod 4E3 is held in place by a surrounding coil of tubing; but when the surrounding tubing has been unwound the rod automatically drops out of the notch in the core and releases the end of the tubing, so that continued drawing away of the tubing producesno strain on the apparatus or tubing. I

The receiving, storing and delivering apparatus described above performs several functions. It winds up the tube smoothly and under proper tension as it is formed. and supports the tubing rollswhile the adhesive 18 settlngin such a way that the tubing is not deformed, as it would be if the rolls were rested on thefloor or supported in other ways. Furthermore, the tubing is received at whatever rate it is produced, and

synchronized, and whenever one had to bestopped for any reason, the other would stop also. With the arrangement shown, neither apparatus has to stop because of temporary stoppage of the other apparatus; and if the 1, The process which consists in coiling apparatus for further treatment cannot be run fast enough to take care of as much tubing as produced by a tuber, two or more devices can be used for such subsequent treatment, and they can be fed at the same time from different rolls on the same storage shaft. If desired, a. long storage shaft can be used with a drive sleeve 26 at each end, so that it can receive tubing from two formers at once, and one, two or more devices for subsequent treatment can be fed from said shaft.

It is not desirable to bend tubing about too small a radius, especially, where the tubing is thick, or composed of nested tubes the aggregate of which form a thick tube. The apparatus illustrated is adapted to form tubing of five plies and suitable for such heavy service as that required of cement bags, and it is not found best to bend such tubing about a radius of less than six inches, so that the storage shaft is given a large diameter and will support a great weight without noticeable bending. If under any circumstances, the length of the shaft and its diameter in proportion to the maximum load is such as to result in objectionable bending, a temporary removable support .may be employed beneath any point on the shaft where it is required.

While the described arrangement is useful with single-walled tubes, it is especially desirable when thetubing is formed of a plurality of layers in the manner described,

because the plurality of resultant seams ren- I der careful handling during the setting of the adhesive more essential, because the plurality of stock rolls necessitate more frequent stoppage of the tube-former to replenish the rolls, and because'apparatus for further treatn'ient of such tubing is less readily synchronized with the tube-fenner than where light or single-ply tubing is be ing treated.

The most essential features of the process. are deemed to -be coiling the tube as fast as it is deliveied by'the tube-former and with the seam side outward, supporting the coil from its'center while the adhesive is setting and in suliicient quantity to furnish 1 astorage supply, and feeding the tubing from the storagesupply at the speed suitable for its subsequent treatment without regard to thecontemporary rate of production by the tube-former.

One embodiment of the invention has been described in some detail and some of the possible variations have been indicated as the description proceeded, but it will be understood that other departures from the described embodiment may be made within the scope of the invention as defined inr the ap* pended claims;

What I claim is:

tubing, having an adhered longitudinal seam, before the adhesive has set, with the seam side 'of the tube outward and supporting the coil from its axis while the adhesive is setting.

--2. The process which consists in coiling tubing, having av freshly adhered longitudi nal seam, about a horizontal axis before the adhesive has set and with the seam side of the tubing outward, depending solely upon the alinement of the source of supply of tubing with the coil to superpose successive turns of the coil, and supporting the coil from its axis and with its axis substantially horizontal until the adhesive is fully set.

3. The process which consists in coiling tubing, having a. freshly adhered longitudinal seam, about a horizontal axis before the adhesive has set and with the seam side of the tubing-outward, depending solely upon the alinement of the source of supply .of 'tubing with the coil to superpose successive turns of the coil, and supporting the coil from its axis and with its axis substantially horizontal until ready toperform further operations on the tubing, and then uncoiling the tubing while it still supported from its axis. I

4. The process which consists in progressively feeding forward a strip and adher ing its edges together to form a tube, coiling the tube, as fast as it is formed, about an axis at right angles to its direction of movement,- moving a completed coil longitudinally of said axis, and uncoiling the tubing while still supported about and from the same axis.

5. The process which consists in progressively forming a plurality of strlps into nested tubes by adhering together the edges of each strip, coiling the nested tubes, as they are formed and before the adhesive has set, with the seam sides of the tubes towards the outside of the coil, and maintaining the tubes coiled until the adhesive has set.

6. The process which consists in progres sively forming a plurality of strips into nested tubes by adhering 't oge-tl er the edges of each strip, coiling the nested tubes with the seam side of the tubes outward before the adhesive has set, and supporting the coil from its center until the adhesive is set.

7. The process which consists in forming tubing from a plurality of strips by folding said strips longitudinally and adhering their edges together, coiling the tubing progressively as it is-formed and before the adhesive has set, with the. seam side of the tubing towards the. outside of the coil, and supporting the coil from its axis until the adhesive is fully set.

8. In tubing apparatus, means to form tubing with an adhesive seam, means to coil the tube, and a support about which the coil thereof, and means to turn the core to wind a coil of the tubing thereon.

10. In tubing apparatus, means for feeding a strip longitudinally and forming it into a tube by adhering together the edges of the stri a shaft at right angles to the direction in which the strip is fed, a core about the shaft and movable longitudinally thereof, and means to turn the core to wind a coil of the tubing thereon with the seam sidia of the tube towards the outside of the col 11. In tubing apparatus, means for feeding a strip longitudinall and forming it into a tube, a shaft at right angles to the direction in which the strip is fed, a separable core about the shaft and movable longitudinally thereof, and means to turn the .core to wind a coil of the tubing thereon.

' 12. In tubing apparatus, means for feeding a strip longitudinally and forming it into a tube, a shaft at right angles to the direction in which said strip is fed, a separable core rotatable and slidable about the shaft and adapted to receive the tube, and means to rotate the core when it is in the line of travel of the strip and tube, the engagement of said means and core being slidable, so that the core is disengaged from said means when it is slid out of said line of travel.

13. In tubing apparatus, means to progressively form a strip into a tube, a shaftat rightangles to the direction of travel of said tube as it is formed, and a core rotatable and slidable on-said shaft, said core having a notch in its surface parallel with its axis and a member fitting loosely in said notch and between which and the walls of g,

the notch the end of the tube may be inserted.

14. In tubing apparatus, means to pro gressively form a strip. into a tube, a core adapted to receive said tube, a driving mounting for said core in line with said forming means, and a bearing-for said core in axial alignment with said driving mounting and adapted to support said core-out of alignment with said forming means.

1%). In tubing apparatus, means for feeding a strip longitudinally and forming it into. a tube, a shaft at right angles to the direction in which the strip is fed, a core about the shaft .and movable longitudinally thereof, said core comprising arcuatesections having hinge connections and separable connections, and means to rotate the to that of the main part of the shaft, means to drive the sleeve,-a core slidable along the 1 outside of said shaft and sleeve, and means. on said sleeve adapted to engage and drive the core when the core is about the sleeve.

In testimony whereof, I have hereunto signed my name to this specification.

ADELMER M. BATES. 

